Residence Time Distribution: ConcepTest and Example Problem

Try to answer this ConcepTest and solve the example problem before using this module. Studies show that trying to answer the questions before studying material improves learning and retention. We suggest that you write down the reasons for your answers. By the end of this module, you should be able to answer these on your own. Answers will be given at the end of this module.

Image of a concepTest for the Residence Time Distribution module on LearnChemE.com
Example Problem 1

A slug of tracer was added to the feed stream for a stirred tank reactor, which was running at steady state. The tracer concentration was measured as a function of time at the reactor exit.

From these data, determine the average residence time for the reactor and the standard deviation of the residence time distribution.

Table for example problem in Residence Time Distribution module on LearnChemE.com